Antonius Johannes Geesink 7th dan (now 10th Dan), the left-handed author demonstrated each of the official sixty-four Judo throwing techniques recognized by the Kodakan (prior to the 1982 expansion of Judo throws in honor of the 100th Anniversary of the founding of Judo) using Judo champions Saburo Matsushita (6th dan)of Japan, and Kim I Tai (4th dan) of Korea as throwing partners.